<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<div class="box"></div>
		<script type="text/javascript">
			//获取盒子,设置样式
			var box = document.getElementsByClassName("box")[0];
			//    box.style.width = "100px";
			//    box.style.height = "100px";
			//    box.style.backgroundColor = "pink";
			box.style.cssText = "width:100px;height:100px;background-color:red";
			
			//隐藏盒子
			box.onclick = function (){
				this.style.display = "none";
				
				this.style.visibility = "hidden";
				
				this.style.opacity = "0";
				
				this.style.position = "absolute";
				this.style.top = "-50px";
			}
			
			
		</script>
	</body>
</html>
